期刊
JOURNAL OF SEA RESEARCH
卷 65, 期 1, 页码 8-18出版社
ELSEVIER
DOI: 10.1016/j.seares.2010.06.004
关键词
Organic Enrichment; Aquaculture; Macrobenthic Composition; Biological Traits; Low-diversity Communities; Zoobenthic Recovery
资金
- Walter and Andree de Nottbeck Foundation
- BONUS+ project HYPER
- Academy of Finland
Habitat change induced by organic enrichment is a growing concern for the sustainability of benthic communities in coastal aquatic environments. This case study describes the spatial and temporal response patterns and the recovery potential of low-diversity benthic communities to organic enrichment at two fish farm locations, during the rearing periods (15 and 20 years, respectively) and the following recovery periods (2 years). The spatial extent of disturbance differed depending on the hydromorphological characteristics of the rearing sites, but degraded macrobenthic communities close to both fish farms were recorded soon after the activity started. Continued organic enrichment resulted in high species turnover-rates and in an altered benthic community composition at both locations. After fish farm abatement, a partial recovery was detected in species richness, but abundance and biomass values were reduced and changes in structural composition remained. Alterations in benthic biological traits were observed at both fish farm locations, implying that organic enrichment might cause changes in benthic community function within low-diversity benthic communities. (C) 2010 Elsevier B.V. All rights reserved.
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